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The P Zero’s cellar position surprised us. We’ve been amazed at how this tire utterly transformed the Ford Mustang’s steering precision, and P Zeros are original equipment on exotics such as the Lamborghini Aventador and the Ferrari 458 Italia. But a blind test does not lie.

This tire’s best finishing position in any test was middle of the pack in the wet autocross, just a bit quicker than most of the extreme-performance tires. Geswein called the Pirellis “firm and skatey, and understeer oriented.” Wet-skidpad grip, at 0.79 g, and wet braking, at 111 feet, were worst in the test.

Lapping a dry track didn’t dramatically change our impressions. The P Zero struggled with understeer, and post-limit grip recovery was noticeably worse than with most of the other tires. Steering precision took a hit on Geswein’s ballot as he found himself overcooking corners. Ultimately, he thought the driving precision required for a clean autocross lap simply couldn’t be found for this set.

At $161 each, the P Zero is upper-middle class on the cost scale. A supple ride and quiet operation aren’t enough to pull the P Zero up the finishing order.